求翻译：我之前找了三家生产非金属绳的中国公司（应该是最大的三家），但不久前接到所有这三家公司的正式回复，目前这三家均不能生产这么大直径的，能生产最大为120mm。有一家称设备改造后可生产，但它并没有在国际大公司的销售业绩。是什么意思？

I had to find three in the production of non-metallic rope (should be a maximum of three), but recently received a formal reply to all three companies, three were unable to produce such a large diameter, can produce the maximum 120mm. One said that the equipment modification can produce, but it does

I found a 3 home production of non-metallic brought Chinese companies, it should be the maximum of 3), but not so long ago all of this to 3 companies and is currently the official reply to the 3 companies are unable to produce such a large diameter, will be able to produce 120 mm maximum. There is a

In front of me looked for three to produce the nonmetallic rope Chinese Corporation (to be supposed to be biggest three), but some time ago received possesses these three companies the official reply, at present these three cannot produce the such large diameter, could produce was most greatly 120mm

I was looking for the three Chinese companies for production of non-metallic rope (should be a maximum of three), but recently received a formal reply from all the three companies, at present the three cannot produce such a large-diameter, capable of producing up to 120mm. After modification of a de

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